After setting the alarm it is sounding on returning home. The display always shows that it is the same sensor in the hall that has triggered the system. I suspect that it is the sensor at fault. The installation has recently been checked and found satisfactory. I would appreciate any information on the problem and where I could obtain a replacement sensor if necessary?

Anthony Bender, July 2010

It could be the post man. if you sensor is looking at the door. the post man putting post through could be the prob.

sum security - burglar alarm repair, August 2010